Group handover scheme using adjusted delay for multi-access networks

Woongsup Lee, Dong Ho Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

In this paper, we propose a group handover scheme in multi-access networks, which utilizes adjusted delay to prevent handover blockings caused by a group handover. In the group handover, a lot of users try to initiate a handover at the same time, which causes network congestion and increases the probability that the handover would be blocked. In our proposed scheme, to prevent these problems of a group handover, each user which participates in the group handover, optimally selects an access point(AP) based on the remaining resources of the AP, and each user initiates a handover after adjusted delay to prevent network congestion. To find an optimal AP selection strategy, we formulate an optimization problem whose objective is to minimize handover blocking probability, and derive an optimal solution by using the Karush-Kuhn-Tucker (KKT) condition. Through performance analysis and simulation results, we show that our proposed scheme can reduce handover blocking probability in a group handover compared to a conventional scheme and keep handover blocking probability to be less than the maximum allowable value of handover blocking probability.

Original languageEnglish
Title of host publication2010 IEEE International Conference on Communications, ICC 2010
DOIs
Publication statusPublished - 2010
Event2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa
Duration: 2010 May 232010 May 27

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Other

Other2010 IEEE International Conference on Communications, ICC 2010
Country/TerritorySouth Africa
CityCape Town
Period10/5/2310/5/27

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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